dos Reis Mariana César Ribeiro, de Andrade Eliana Aparecida Fonseca, Borges Ana Carolina Lacerda, de Souza Djenifer Queiroz, Lima Fernanda Pupio Silva, Nicolau Renata Amadei, Andrade Adriano Oliveira, Lima Mário Oliveira
Laboratório de Engenharia de Reabilitação Sensório Motora, Universidade do Vale do Paraíba, Av. Shishima Hifumi, 2911, Urbanova, SP, 12244-000, Brazil,
Lasers Med Sci. 2015 Apr;30(3):1089-96. doi: 10.1007/s10103-014-1702-5. Epub 2015 Jan 23.
The cerebrovascular accident (CVA), high-impact disease II, affects the basic functions of the limbs, leading to changes of sensory, language, and motor functions. The search for resources that minimize the damage caused by this disease grows every day. The clinical use of low-intensity laser therapy (LILT) has provided major breakthroughs in the treatment of muscular disorders and prevention of muscle fatigue. Thus, the objective of the present study is to analyze the answers and immediate adaptations of the rectus femoris and vastus medialis of spastic hemiparetic patients, facing the increase in peak torque and triggering muscle fatigue, after application of LILT. Double-blind clinical trials were conducted with 15 volunteers post-CVA with spasticity, of both genders, between 40 and 80 years old. To this end, the volunteers went through three consecutive stages of rating (control, placebo, and laser). All performed tests of isometric contraction on the patient's hemiparetic side. Significant differences were observed with regard to the increase in muscle performance (p = 0.0043) and the reduction in blood lactate concentration (p < 0.0001) of the post-LILT muscles. The LILT (diode laser, l100 mW 808 nm, 4.77 J/cm(2)/point, 40 s/AP) can be employed during and after spastic muscle-strengthening exercises, contributing to the improvement of motor function of the patient. After application of LILT, we found increased torque as well as decreased in lactate level in patients with spasticity.
脑血管意外（CVA），即高影响性疾病II，会影响肢体的基本功能，导致感觉、语言和运动功能发生变化。寻找能将这种疾病造成的损害降至最低的资源的研究日益增多。低强度激光疗法（LILT）的临床应用在肌肉疾病治疗和预防肌肉疲劳方面取得了重大突破。因此，本研究的目的是分析痉挛性偏瘫患者股直肌和股内侧肌在应用LILT后面临峰值扭矩增加和引发肌肉疲劳时的反应及即时适应性。对15名40至80岁患有痉挛的CVA后志愿者（男女均有）进行了双盲临床试验。为此，志愿者们经历了三个连续的评级阶段（对照、安慰剂和激光）。所有人都在患者偏瘫侧进行了等长收缩测试。观察到LILT后肌肉性能增加（p = 0.0043）以及肌肉血乳酸浓度降低（p < 0.0001）存在显著差异。LILT（二极管激光，100 mW 808 nm，4.77 J/cm(2)/点，40 s/AP）可在痉挛性肌肉强化锻炼期间及之后使用，有助于改善患者的运动功能。应用LILT后，我们发现痉挛患者的扭矩增加且乳酸水平降低。
